Following on from testing Koha with memcached, I decided to test the opac with mod_perl, mod_expires and mod_deflate.
So with no mod_perl and no cachingtime curl http://opac.koha.workbuffer.org/cgi-bin/koha/opac-search.pl?q=a
real 0m2.993s
And with mod_perltime curl http://opac.koha.workbuffer.org/cgi-bin/koha/opac-search.pl?q=a
real 0m0.657s
And now opac main is down too
real 0m0.010s

This of course isn’t really testing mod_expires or mod_deflate, but certainly telling the browser to cache the images, css and javascript helps out a lot there too.

(Oh and if you haven’t seen the movie Once were Warriors, the title won’t make sense, i’m sure if you search on youtube you can find the clip)